{
  "manageEntity": {
    "action": "Save",
    "entityId": "1708024097",
    "entityType": "Track",
    "nonce": "0x9a74d85b4a85cd1c6e32a23a6e1c5774456f3f083c2cfa5bd86f935b990ef4e7",
    "signature": "0xe1488166539780920d19874c6b0d1824d1912f094b962238ef452ced596c617c44b381828cfb7cf346328b61d92027390459e1deb072d159a073dffe2caa1c131c",
    "signer": "0x6245d270201FE6e26477efA986E8C4035bF65C71",
    "userId": "36222594"
  }
}